Ruler



(No Model.)

W. SAVIDGE.

RULER.

No. 563,510. Patnted July 7. 1 896 WITNESSES: INVE/VT'OH UNITED STATESPATENT OFFICE.

IVILLIAM SAVIDGE, OF HONOLULU, HAIVAII.

RULER.

SPECIFICATION forming part of Letters Patent No. 563,510, dated July '7,1896.

Application filed J annary 24, 1896. Serial No. 576,646. (No model.) I

To all whom it may concern:

Be it known that I, WILLIAM SAVIDGE, a citizen of the Republic ofHawaii, and a resident of Honolulu, Island of Oahu, Hawaii, haveinvented certain new and useful Improvements in Rulers, of which thefollowing is a specification, reference being had to the accompanyingdrawings,forming a part thereof, in which similar letters of referenceindicate corresponding parts.

This invention relates to rulers, and to that class thereof which isadapted for use by draftsmen and others; and the object of the inventionis to provide a ruler by means of which irregular or curved lines may beformed; and with this and other objects in view the invention consistsin the construction, combination, and arrangement of parts hereinafterdescribed and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which Figure 1 is a planview of a section of my improved ruler; Fig. 2, an end view thereof; andFig. 3, a view similar to that of Fig. 1, showing a modified form.

In the practice of my invention I provide a ruler comprising a bodyportion A, one side of which is beveled on both edges thereof, as shownat a, and is provided with a metal cover B, which is triangular incross-section, and the sides of which cover the beveled edges of thebody portion A. The metal cover B, or the edge b thereof, is providedwith triangular notches or recesses O, and for purposes of convenienceone or both sides of said metal cover or strip B may be provided with ascale, as shown in Fig. 1.

In Fig. 3 the edge of the metal cover or strip B is provided with anedge which represents a convoluted line, or with notches or recessesformed by curved lines, as clearly shown at O, and the end of the bodyportion A is also provided with a strip or cover D,

similar to the strip or cover B, the edge of which is provided with acurve C in the form be provided with a scale in the usual manner.

The object in providing the notched, convoluted, or spiral edges O is toprovide means for forming or making lines of similar form;

and it is evident that any preferred form ofline may thus be made, andmy invention is not limited to the form herein shown and described, norto the form of the ruler, which may be of any desired shape, size, andlength, and the edges thereof may be circular if desired.

In addition to being a great aid to draftsmen and others in makingdrawings, specifications, diagrams, &c., my improved ruler will also befound to be of great service to bookkeepers in lining books and forsimilar purposes, and my improved ruler may be made of any desiredmaterial, either wholly of metal, or of wood and metal, or any preferredsubstance or substances.

Having fully described my invention, I claim as new and desire to secureby Letters Patent As a new article of manufacture a ruler comprising abody portion having one edge beveled on both sides and a metal cap fixedtherealong having in its edge a series of notches together representingor forming the outlines of a connected series of equal curves, andhaving on one end a metal cap in whose exposed edge is formed aconnected series of indentations representing connected unequal curves,-substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of the subscribing witnesses, this 4th day of January,1896.

IVILLIAM SAVID GE.

Witnesses:

EDWARD ERNEST MossMAN, HENRY A. GILEs.

